/// @}
};
- /// This function can be used to copy the file specified by Src to the
- /// file specified by Dest. If an error occurs, Dest is removed.
- /// @returns true if an error occurs, false otherwise
- /// @brief Copy one file to another.
- bool CopyFile(const Path& Dest, const Path& Src, std::string* ErrMsg);
-
/// This is the OS-specific path separator: a colon on Unix or a semicolon
/// on Windows.
extern const char PathSeparator;
return false;
}
-bool
-sys::CopyFile(const sys::Path &Dest, const sys::Path &Src, std::string* ErrMsg){
- int inFile = -1;
- int outFile = -1;
- inFile = ::open(Src.c_str(), O_RDONLY);
- if (inFile == -1)
- return MakeErrMsg(ErrMsg, Src.str() +
- ": can't open source file to copy");
-
- outFile = ::open(Dest.c_str(), O_WRONLY|O_CREAT, 0666);
- if (outFile == -1) {
- ::close(inFile);
- return MakeErrMsg(ErrMsg, Dest.str() +
- ": can't create destination file for copy");
- }
-
- char Buffer[16*1024];
- while (ssize_t Amt = ::read(inFile, Buffer, 16*1024)) {
- if (Amt == -1) {
- if (errno != EINTR && errno != EAGAIN) {
- ::close(inFile);
- ::close(outFile);
- return MakeErrMsg(ErrMsg, Src.str()+": can't read source file");
- }
- } else {
- char *BufPtr = Buffer;
- while (Amt) {
- ssize_t AmtWritten = ::write(outFile, BufPtr, Amt);
- if (AmtWritten == -1) {
- if (errno != EINTR && errno != EAGAIN) {
- ::close(inFile);
- ::close(outFile);
- return MakeErrMsg(ErrMsg, Dest.str() +
- ": can't write destination file");
- }
- } else {
- Amt -= AmtWritten;
- BufPtr += AmtWritten;
- }
- }
- }
- }
- ::close(inFile);
- ::close(outFile);
- return false;
-}
-
bool
Path::makeUnique(bool reuse_current, std::string* ErrMsg) {
bool Exists;
#include <malloc.h>
// We need to undo a macro defined in Windows.h, otherwise we won't compile:
-#undef CopyFile
#undef GetCurrentDirectory
// Windows happily accepts either forward or backward slashes, though any path
return false;
}
-bool
-CopyFile(const sys::Path &Dest, const sys::Path &Src, std::string* ErrMsg) {
- // Can't use CopyFile macro defined in Windows.h because it would mess up the
- // above line. We use the expansion it would have in a non-UNICODE build.
- if (!::CopyFileA(Src.c_str(), Dest.c_str(), false))
- return MakeErrMsg(ErrMsg, "Can't copy '" + Src.str() +
- "' to '" + Dest.str() + "': ");
- return false;
-}
-
bool
Path::makeUnique(bool reuse_current, std::string* ErrMsg) {
bool Exists;